2149735966 has 8 divisors (see below), whose sum is σ = 3685261680. Its totient is φ = 921315408.

The previous prime is 2149735957. The next prime is 2149735979. The reversal of 2149735966 is 6695379412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76776271 + ... + 76776298.

It is an arithmetic number, because the mean of its divisors is an integer number (460657710).

Almost surely, 2^2149735966 is an apocalyptic number.

2149735966 is a deficient number, since it is larger than the sum of its proper divisors (1535525714).

2149735966 is a wasteful number, since it uses less digits than its factorization.

2149735966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153552578.

The product of its digits is 2449440, while the sum is 52.

The square root of 2149735966 is about 46365.2452382170. The cubic root of 2149735966 is about 1290.6100445757.

The spelling of 2149735966 in words is "two billion, one hundred forty-nine million, seven hundred thirty-five thousand, nine hundred sixty-six".